Shadow spirits: It is told that Morgoth sent "spirits of shadow" against Tilion, as he hated the light of the Sun and Moon.[3]

Evil spirits

All Ainur originally adhered to Eru, but the Vala Melkor became corrupted and fell from the grace of Eru.[1] Melkor "gathered to himself spirits out of the voids of Eä that he had perverted to his service", and these became known as the Úmaiar or demons.[6]

In the late Third Age, spirits of "evil vigilance" are said to have abode in the Two Watchers.[7] The Barrow-wights are furthermore said to be evil spirits who had entered in deserted mounds, stirring the bones of the dead.[8]

Names

Other versions of the legendarium

Early versions of the legendarium refer to the demon Fankil, son of Melko (an early name for Morgoth) and in this version, he caused discord in the Ermon (Edain), and Ilkorins (Eldar). The leader of the Dark-Elves, Tu, and Nuin, Father of Speech, combated Fankil and drove his forces out of the land of Palisor, and the time of Elves and Men began.[source?]